(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20190829/0339Z
 (3) Volcano:Sheveluch (CAVW #300270)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2019-125
 (8) Volcano Location:N 56 deg 38 min E 161 deg 18 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:10768.24 ft (3283 m), the dome elevation ~8200 ft (2500 m)
(11) Volcanic Activity Summary:A growth of the lava dome continues, a strong fumarolic activity and an incandescence of the dome blocks and hot avalanches accompanies this process. According to satellite data, an ash plume up to 10 km a.s.l. drifted to the north from the volcano.

Explosive-extrusive eruption of the volcano continues. Ash explosions up to 32,800-49,200 ft (10-15 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:29520-32800 ft (9000-10000 m) AMSL Time and method of ash plume/cloud height determination: 20190829/0310Z – Himawari-8
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 26 mi (42 km)
Direction of drift of ash plume/cloud of the volcano: NNE / azimuth 12 deg
Time and method of ash plume/cloud determination: 20190829/0310Z – unknown
(14) Remarks:
(15) Contacts: Alexander G. Manevich, IVS FEB RAS
mag@kscnet.ru +74152202115

Duty scientist: +79622825253
(16) Next Notice:A new VONA will be issued if conditions change significantly or the colour code is changed. VONAs are posted at http://www.kscnet.ru/ivs/kvert/index_eng.php.

In Russia, KVERT, on behalf of the Institute of Volcanology and Seismology (IVS) FEB RAS, is responsible for providing information on volcanic activity to international air navigation services for the airspace users.